Can a DTC Brand Grow on Amazon Without Losing Store Sales?

Someone on your team pulls up a competitor's Amazon listing in the planning meeting and asks why you aren't there yet. The worry that follows is a fair one, that the customers who'd have bought on your site will buy on Amazon instead, at a lower margin and with no email address attached.

The honest answer depends on your category, your prices and how you set up the two channels, and the evidence is thinner than most pitches suggest. Platform details are as of 28 October 2026.

Does selling on Amazon take sales from a DTC brand's own store?

Selling on Amazon does not have to take sales from a DTC store, and the strongest study available found marketplace sales slightly raised a retailer's own website sales on average, with the effect strongest in categories with wide choice and low prices.

That study, by Maier and Wieringa in the International Journal of Research in Marketing, used category sales data from one of the largest global marketplace sellers. Each 1% rise in marketplace sales came with a 0.014% rise in sales on the retailer's own website.

The authors also warned that this strategy strengthens the marketplace, which can end up controlling the customer relationship. So you gain reach and give Amazon a share of your customer relationship at the same time.

No independent study measures this for Shopify brands, and this one covers a single seller. Treat it as a reason to run your own test, not as a rule you can lean on.

What the halo evidence shows

Most claims about an Amazon halo come from measurement vendors, and they measure a different effect, ads lifting Amazon sales rather than Amazon taking store sales.

One published example comes from Haus, which sells incrementality testing. In a three-week geo test for Fresh Clean Threads, Haus found Meta ads drove a 23% lift in Amazon sales alongside a 21% lift in DTC sales. That's one brand and a vendor's own case study, so read it as a sign of what to test in your account.

It still matters for your budget. If you ignore the Amazon sales your Meta ads create, those ads look less profitable than they are, and you may cut spend that was working. Ask whoever runs your paid social to count Amazon sales in the result before anyone trims the budget.

Set prices so the channels do not compete

Price alignment is the main structural rule, because Amazon compares a brand's Amazon price with prices elsewhere.

Amazon's Marketplace Fair Pricing Policy lets it penalize a seller who sets a price "significantly higher than recent prices offered on Amazon or elsewhere," in the words of Canada's Competition Bureau. The full policy sits behind a Seller Central login, so read the current wording there before you set your rules. A store-only discount can make your Amazon offer look overpriced and put it at risk.

The policy is under scrutiny. The US Federal Trade Commission alleges in its antitrust case that Amazon uses "anti-discounting measures that punish sellers," and Canada's Competition Bureau advanced its own investigation in July 2025 while stating "there is no conclusion of wrongdoing at this time." These are allegations, not findings, so take cross-channel pricing to your counsel.

In practice, run one pricing calendar for both channels. Plan promotions together so your store and Amazon prices move at the same time, watch Amazon's pricing alerts during each promotion, and get legal review of any resale price rules if resellers or a vendor deal with Amazon are involved.

Give each channel a reason to exist

Channel conflict drops when each channel offers the customer something the other does not.

A common approach, and our view, is to put a curated range on Amazon and keep the full range on your store. Hero products and repeat buys go to Amazon, where shoppers already search. Your full catalog, new launches, subscriptions, bundles, personalization and loyalty rewards stay on the store, where you own the customer relationship.

Bundles need care. Check any pack-size or bundle price against the fair pricing policy before you list it, and remember that a real kit, or a product you don't sell on your store, keeps the two offers clearly apart.

Your store has one more advantage in AI search. Amazon's robots.txt blocks OpenAI's crawlers, GPTBot, OAI-SearchBot and ChatGPT-User, so your own product pages are often what ChatGPT can read and cite. If you want the detail by assistant, does AI recommend Amazon over DTC brands has it.

Use Amazon's own tools to bridge the channels

Amazon offers programs that connect off-Amazon marketing with Amazon sales, and one that brings Prime to the store.

• Amazon Attribution is free and measures how your off-Amazon marketing, including social ads, search and email, drives views and purchases on Amazon, with a 14-day window.
• Brand Referral Bonus pays brands enrolled in Brand Registry a bonus that Amazon says averages 10% of qualifying sales from non-Amazon marketing tagged with Attribution. Rates vary by category, and the bonus arrives as credits against your future referral fees, not as cash.
• Buy with Prime lets your shoppers use Prime checkout and delivery on your own site. Amazon reports an average 16% increase in revenue per visitor, from A/B tests with 167 merchants between July 2023 and June 2024, so test it on your own checkout before you rely on it.

Measure total brand sales, not channel sales

The question isn't whether Amazon grew. It's whether your brand grew once you count both channels.

1. Track total brand revenue and contribution margin across your store and Amazon each week.
2. Tag Meta and your other off-Amazon campaigns with Amazon Attribution so their Amazon sales count toward their results.
3. Watch your store's returning-customer revenue after you launch on Amazon. A fall in repeat purchases on the store is the clearest sign of cannibalization.
4. If you can, launch Amazon with a limited range first and compare store sales for those products against similar products you keep off Amazon.

For the weekly routine, use which metrics a DTC brand should review every week as your checklist.

Should the same team run Meta and Amazon?

A single team running Meta, Amazon and the store makes it easier to count the halo once and set budgets on total brand sales, because the same people see both sides.

Separate teams tend to optimize their own channel's report. The Meta team is judged on store ROAS and misses the Amazon sales its ads create, while the Amazon team claims sales that Meta generated.

Before you hire anyone for Amazon, ask how they measure the halo and report your total brand revenue. A good answer shows store and Amazon sales in one report, and a red flag is an Amazon ROAS figure on its own. Then work through who should own Amazon listings and ads for the rest of your questions.

Frequently asked questions

Will launching on Amazon lower our margins?

Amazon's selling fees include a referral fee on every item sold, plus FBA costs if Amazon ships for you, so margin per order often comes in below the store's. The question is whether total contribution margin across both channels rises.

Should we sell our whole catalog on Amazon?

Usually not at first. A curated range of hero and repeat products tests demand while keeping launches, bundles and subscriptions on the store.

Can we run different prices on Amazon and our own site?

You can, within limits. Amazon's pricing policy penalizes Amazon prices well above recent prices elsewhere, so check any large gap with counsel before you set it.